222122122220122 has 4 divisors (see below), whose sum is σ = 333183183330186. Its totient is φ = 111061061110060.

The previous prime is 222122122220107. The next prime is 222122122220179. The reversal of 222122122220122 is 221022221221222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 219621166583641 + 2500955636481 = 14819621^2 + 1581441^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55530530555029 + ... + 55530530555032.

Almost surely, 2^{222122122220122} is an apocalyptic number.

222122122220122 is a deficient number, since it is larger than the sum of its proper divisors (111061061110064).

222122122220122 is a wasteful number, since it uses less digits than its factorization.

222122122220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111061061110063.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 222122122220122 its reverse (221022221221222), we get a palindrome (443144343441344).

The spelling of 222122122220122 in words is "two hundred twenty-two trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred twenty thousand, one hundred twenty-two".